[openib-general] Re: Mellanox HCAs: outstanding RDMAs
Michael S. Tsirkin
mst at mellanox.co.il
Tue Jun 6 05:44:26 PDT 2006
Quoting r. Talpey, Thomas <Thomas.Talpey at netapp.com>:
> Subject: Re: Mellanox HCAs: outstanding RDMAs
> At 03:09 AM 6/6/2006, Michael S. Tsirkin wrote:
> >Quoting r. somenath <somenath at veritas.com>:
> >> possibility of stalling is scary!
> >You might want to review chapter 9.5 TRANSACTION ORDERING for info on when
> >will ordering rules cause the IB QP to stall.
> MST, are you disagreeing that RDMA Reads can stall the queue?
I don't disagree with this of course. I was simply suggesting to ULP designers
to read the chapter 9.5 and become aware of the rules, taking them
into account at early stages of protocol design.
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